CN205382134U - Coal slurry gasification equipment - Google Patents
Coal slurry gasification equipment Download PDFInfo
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- CN205382134U CN205382134U CN201521130144.5U CN201521130144U CN205382134U CN 205382134 U CN205382134 U CN 205382134U CN 201521130144 U CN201521130144 U CN 201521130144U CN 205382134 U CN205382134 U CN 205382134U
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Abstract
The utility model discloses a coal slurry gasification equipment, including gasifier shell, vaporizer and shock chamber, vaporizer and shock chamber from top to bottom set up in the gasifier shell and separate from top to bottom through the baffle, and the baffle center is equipped with the vaporizer and arranges the cinder notch, the top of vaporizer is provided with the nozzle, lies in shock chamber upper portion position on the gasifier shell and is equipped with the coal gas export, lies in on the gasifier shell the pulp water pond following position of liquid level of shock chamber is equipped with the buck export, lies in on the gasifier shell the bottom of shock chamber is equipped with the lime -ash export, and the nozzle is spiral -flow type combination nozzle, and includes fuel channel, ignition oxidant passageway, inlayer coolant passageway, the first passageway of main oxygen, coal slurry passageway, main oxygen second channel and outside coolant passageway from inside to outside in proper order, the axis of nozzle and the axis angularity alpha of vaporizer, 0 < alpha < 20. The utility model discloses a coal slurry gasification equipment, small investment, long service life, big load, gasification efficiency height, and do benefit to stable long period run.
Description
Technical field
This utility model belongs to coal gasification apparatus field, particularly a kind of coal water slurry gasifying device.
Background technology
Coal gasification, especially high pressure, mass air stream bed gasification technology, it is shown that good economic benefit and social benefit, be the mainstream technology of current coal gasification.Current dry method entrained flow bed gasification technology mainly includes Shell gasification, GSP gasification and space flight gasification, and these technology are all with superfine dry pulverized coal for gasified raw material, and easy breaking out of fire explosion accident, danger is big.Also have that investment is big, operation controls the features such as complicated and technology is not overripened simultaneously.
Current wet entrained flow bed gasification technology mainly includes GE gasification and the gasification of four nozzles, and Wet technique is with water-coal-slurry for gasified raw material, and operation controls simple.Also have that small investment, technique is simple and the advantage such as technology maturation simultaneously.But the burner of GE gasification and the gasification of four nozzles is startup burner and process burner is provided separately, and production operation bothers；Adopting lining of fire brick in gasification furnace, its service life is short, and cost is high, and especially for dystectic coal, owing to in-furnace temperature need to operate above in ash fusion point, the life-span causing refractory brick is shorter.For reducing ash fusion point, it is possible to add other material in coal, but this complexity that will increase operation and production cost；Easily there is slagging scorification stopping state in the shock chamber of bottom, makes gasification installation be forced to stop, affects device long-period stable operation and economic benefit.
Utility model content
The purpose of this utility model is in that to provide a kind of coal water slurry gasifying device, and this coal water slurry gasifying device small investment, long service life, big load, gasification efficiency are high, be beneficial to stable long-term operation.
Technical scheme provided by the utility model is as follows:
Coal water slurry gasifying device of the present utility model, including gasification furnace shell, vaporizer and shock chamber；Described vaporizer and shock chamber are from top to bottom arranged in described gasification furnace shell and apart from top to bottom through dividing plate, and described dividing plate center is provided with vaporizer slag-drip opening；The top of described vaporizer is provided with burner, described gasification furnace shell is positioned at described shock chamber upper position and is provided with gas exit, described gasification furnace shell is positioned at below the pulp water pond liquid level of described shock chamber position and is provided with gray water outlet, the bottom being positioned at described shock chamber on described gasification furnace shell is provided with lime-ash outlet, described burner is spiral-flow type assembled nozzle, and includes fuel channel, igniting oxidant channel, internal layer coolant guiding channel, main oxygen first passage, water-coal-slurry passage, main oxygen second channel and outside coolant guiding channel from inside to outside successively；The angled α of axis of the axis of described burner and described vaporizer, 0 ° < α < 20 °.
Preferably, described internal layer coolant guiding channel and outside coolant guiding channel are provided with water leg.
Preferably, described burner has at least 3；Each burner is along the circumferential direction uniformly arranged at vaporizer top.
Preferably, the inwall of described vaporizer is water-cooling wall, and described water-cooling wall is put by metallic plate and dish and the water pipe that is fixed on described metallic plate forms；Described water-cooling wall is on the water pipe and metallic plate of fire side, and dispersion is fixed with thermal conductive material layer.
Be preferably located at described water-cooling wall to fire side water pipe and metallic plate on thermal conductive material layer and Heat Conduction Material lamellar spacing to fire side water pipe and metallic plate on, be coated with refractory masses.
Preferably, the water pipe water inlet of described water-cooling wall is in bottom, and outlet is on top.
Preferably, being provided with the Quench shower nozzle for spraying cooling in described shock chamber, described Quench shower nozzle is positioned at described gas exit top；The down-comer for cooling down it is additionally provided with in described shock chamber；The upper end of described down-comer is connected to the down-comer top being positioned at below described Quench shower nozzle, and the lower end of described down-comer extends to below the pulp water pond liquid level in described shock chamber；Described down-comer top and the angled β of described down-comer, 90 ° < β < 180 °, and the bottom on described down-comer top is connected with described down-comer, top is fixed on the inwall of described gasification furnace shell.
Preferably, described Quench shower nozzle is atomizer.
The beneficial effects of the utility model are in that:
(1) coal water slurry gasifying device of the present utility model is compared with disclosed coal slurry gasifier at present, and top arranges multiinjector, has the advantages that gasification scale is big and gasification efficiency is high；Adopting spiral-flow type assembled nozzle, operation controls simple, and is conducive to water-coal-slurry to mix homogeneously when entering coal water slurry gasifying device with gaseous oxidizer, is conducive to the carrying out of gasification reaction；And the angled α of axis of the axis of burner and vaporizer, 0 ° < α < 20 °, the flame end that can make burner is concentrated, and then make the high-temperature slag sprayed concentrate near the axis of vaporizer, reduce its splash to vaporizer inwall, make major part high-temperature slag directly cool down to shock chamber through the discharge of vaporizer slag-drip opening, extend the service life of vaporizer；
(2) setting of water leg structure, it is prevented that internal layer coolant guiding channel and outside coolant guiding channel are damaged by the high temperature and the high-temperature slag that produce during burner work；
(3) 3 burners and each burner is had at least along the circumferential direction to be uniformly arranged at the top of described vaporizer, it is ensured that ceiling portion of gasifying during igniting is heated evenly, it is ensured that each ignition point heats up simultaneously；It is further ensured that the gasification efficiency of coal water slurry gasifying device；
(4) vaporizer adopts water wall structure, is applicable to the ature of coal of high ash melting point, it also avoid the problem that refractory brick service life is short, need often to change high price refractory brick simultaneously；
(5) top, shock chamber adopts the direct spraying cooling of chilled water, bottom to adopt down-comer cooling, it is to avoid shock chamber's slagging scorification blockage problem, provides condition for realizing gasification furnace long-period stable operation.
Accompanying drawing explanation
Fig. 1 is the coal water slurry gasifying device of the present utility model structural representation in a kind of detailed description of the invention；
Fig. 2 is the longitudinal sectional drawing in a kind of detailed description of the invention of the burner in this utility model coal water slurry gasifying device.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, coal water slurry gasifying device of the present utility model is described in further detail, but this utility model is not limited to below example.
Coal water slurry gasifying device of the present utility model, in a kind of specific embodiment, as shown in Figure 1-2,1 for gasification furnace shell, 2 for burner, 3 for water-cooling wall, 4 for Quench shower nozzle, 5 for down-comer top, 6 for gas exit, 7 for down-comer, 8 for gray water outlet, 9 for lime-ash outlet, 10 for fuel channel, 11 for igniting oxidant channel, 12 for internal layer coolant guiding channel, 13 be main oxygen first passage, 14 for water-coal-slurry passage, 15 be main oxygen second channel, 16 for outside coolant guiding channel, 17 for vaporizer, 18 be shock chamber.
As shown in Figure 1, 2, including gasification furnace shell 1, vaporizer 17 and shock chamber 18；Described vaporizer 17 and shock chamber 18 are from top to bottom arranged in described gasification furnace shell 1 and apart from top to bottom through dividing plate, and described dividing plate center is provided with vaporizer slag-drip opening；The top of described vaporizer 17 is provided with burner 2, described gasification furnace shell 1 is positioned at described shock chamber 18 upper position and is provided with gas exit 6, being positioned at below the pulp water pond liquid level of described shock chamber 18 position on described gasification furnace shell 1 and be provided with gray water outlet 8, the bottom that described gasification furnace shell 1 is positioned at described shock chamber 18 is provided with lime-ash outlet 9；Described burner 2 is spiral-flow type assembled nozzle, and includes fuel channel 10, igniting oxidant channel 11, internal layer coolant guiding channel 12, main oxygen first passage 13, water-coal-slurry passage 14, main oxygen second channel 15 and outside coolant guiding channel 16 from inside to outside successively；The angled α of axis of the axis of described burner 2 and described vaporizer 17,0 ° < α < 20 °；Preferably 10 ° < α < 18 °.
In a preferred embodiment, α=15 °.
When 10 ° < α < 18 °, especially during α=15 °, the flame end that can make burner is concentrated, and then make the high-temperature slag sprayed concentrate near the axis of vaporizer, reduce its splash to vaporizer inwall, make major part high-temperature slag directly cool down to shock chamber through the discharge of vaporizer slag-drip opening, extend the service life of vaporizer.
In one embodiment, it is provided with igniter between the outlet of described fuel channel 10 and igniting oxidant channel 11.
In one embodiment, described internal layer coolant guiding channel 12 and outside coolant guiding channel 16 are provided with water leg.
The setting of water leg structure, can prevent the water-coal-slurry in gasification or high-temperature slag from attaching shaft and affect the uniform of the bed of material and decline.Because slag is prone to hang on fire-resistant brick furnace wall, and then corrode refractory brick, have a strong impact on the life-span of gasification furnace, and water leg can play the effect of protection shaft.On the other hand, water leg can also reduce heat radiation outside in stove, by-product low-pressure steam, is made for gasifying agent and uses.
In one embodiment, described burner 2 has at least 3；It is preferably provided with 3-9；Each burner 2 is along the circumferential direction uniformly arranged at the top of described vaporizer 17.
Multiple burners 2 and being along the circumferential direction uniformly arranged, it is ensured that ceiling portion of gasifying during igniting is heated evenly, it is ensured that each ignition point heats up simultaneously；It is further ensured that the gasification efficiency of coal water slurry gasifying device.
In one embodiment, burner 2 passes through Flange joint to gasification furnace.
In one embodiment, the inwall of described vaporizer 17 is water-cooling wall 3, and described water-cooling wall 3 is put by metallic plate and dish and the water pipe that is fixed on described metallic plate forms；Described water-cooling wall 3 is on the water pipe and metallic plate of fire side, and dispersion is fixed with thermal conductive material layer.
Thermal conductive material layer dispersion is fixing, not only can reach good heat-conducting effect, is also beneficial to save cost.
When water-coal-slurry and oxygen, in vaporizer 17, vigorous reaction occurs, slag is got rid of to water-cooling wall, and the setting of thermal conductive material layer, being beneficial to cooling water carries out heat exchange with slag, quickly cools down slag.
In one embodiment, described metallic plate is cylindrical metal plate.
The many water pipe fixed disks constituting water-cooling wall 3 are wound on the outside of cylindrical metal plate, form the outer wall of vaporizer.Vigorous reaction is there is in water-coal-slurry and oxygen in vaporizer 17; high temperature fused state coal ash; namely slag is got rid of to water-cooling wall 3; cooled solidification immediately, newly-generated slag is attached thereto again, until when molten slag layer temperature is close to ash fusion point temperature; newly-generated slag then relies on gravity to go out vaporizer slag-drip opening along wall flow; it is attached on water-cooling wall one layer of solidified slag and protects water-cooling wall, it is achieved " with slag anti-slag ", improve service life.
In one embodiment, be positioned at described water-cooling wall 3 to fire side water pipe and metallic plate on thermal conductive material layer and Heat Conduction Material lamellar spacing to fire side water pipe and metallic plate on, be coated with refractory masses.
The setting of refractory masses, improves the fireproof high-temperature resistant of water-cooling wall 3, is conducive to extending the service life of this device.
In one embodiment, the water pipe water inlet of described water-cooling wall 3 is in bottom, and outlet is on top.
In one embodiment, being provided with the Quench shower nozzle 4 for spraying cooling in described shock chamber 18, described Quench shower nozzle 4 is positioned at described gas exit 6 top；The down-comer 7 for cooling down it is additionally provided with in described shock chamber 18；The upper end of described down-comer 7 is connected to the down-comer top 5 being positioned at below described Quench shower nozzle 4, and the lower end of described down-comer 7 extends downward below the pulp water pond liquid level in described shock chamber 18；Described down-comer top 5 and the described angled β of down-comer 7,90 ° < β < 180 °, and the bottom on described down-comer top 5 is connected with described down-comer 7, top is fixed on the inwall of described gasification furnace shell 1.
In a preferred embodiment, β=150 °.
In one embodiment, the diameter on described down-comer top 5 is more than described down-comer 7.
In one embodiment, described Quench shower nozzle 4 is atomizer.
During driving, in the internal layer coolant guiding channel 12 and outside coolant guiding channel 16 of described burner 2, first pass into cooling water be circulated, after circular flow, the fuel such as liquefied petroleum gas (LPG) or natural gas are passed into the fuel channel 10 of described burner 2 again, oxygen is passed into igniting oxidant channel 11, igniter is utilized to light a fire, make fuel combustion, and then gasification furnace is heated up, treat that the temperature in gasification furnace is raised to uniform temperature (such as 800 DEG C), by water-coal-slurry by pipelined to water-coal-slurry passage 14, now oxygen is also into main oxygen first passage 13 and main oxygen second channel 15.Enter water-coal-slurry and the oxygen generating portion oxidation reaction of vaporizer, generate raw gas.In this process, the injection rate of oxygen is controlled by main oxygen first passage 13 and main oxygen second channel 15.After gasifier operation is stable, for guaranteeing stable operation, can still keep fuel channel 10 and igniting oxidant channel 11 to run, now LPG or natural gas can be switched to the synthesis gas that gasification produces.There is vigorous reaction, high temperature fused state coal ash in water-coal-slurry and oxygen, namely slag is got rid of to the inwall of vaporizer 17 in vaporizer 17.
Quench shower nozzle 4 in shock chamber 18 is arranged on below vaporizer slag-drip opening, and top adopts shower nozzle spray Quench coal gas and lime-ash, and bottom adopts down-comer cooling coal gas and lime-ash.The raw gas of discharge and lime-ash are carried out Quench spray facing to vaporizer slag-drip opening by Quench shower nozzle 4 makes it cool down, raw gas after spray Quench drops to bottom, shock chamber with lime-ash, being lowered by pipe again to cool down, the bottom of down-comer extends in shock chamber below the liquid level of pulp water pond.Coal gas after cooling is discharged by gas exit 6, enters downstream process and washs, and gray water outlet 8 discharges spray washing buck, and the bulky grain lime-ash settled down then is exported 9 discharges by lime-ash.
Claims (8)
1. a coal water slurry gasifying device, including gasification furnace shell (1), vaporizer (17) and shock chamber (18)；Described vaporizer (17) and shock chamber (18) are from top to bottom arranged in described gasification furnace shell (1) and apart from top to bottom through dividing plate, and described dividing plate center is provided with vaporizer slag-drip opening；The top of described vaporizer (17) is provided with burner (2), described gasification furnace shell (1) is positioned at described shock chamber (18) upper position and is provided with gas exit (6), described gasification furnace shell (1) is positioned at below the pulp water pond liquid level of described shock chamber (18) position and is provided with gray water outlet (8), the bottom being positioned at described shock chamber (18) on described gasification furnace shell (1) is provided with lime-ash outlet (9), it is characterized in that, described burner (2) is spiral-flow type assembled nozzle, and include fuel channel (10) from inside to outside successively, igniting oxidant channel (11), internal layer coolant guiding channel (12), main oxygen first passage (13), water-coal-slurry passage (14), main oxygen second channel (15) and outside coolant guiding channel (16)；The angled α of axis of the axis of described burner (2) and described vaporizer (17), 0 ° < α < 20 °.
2. coal water slurry gasifying device according to claim 1, it is characterised in that described internal layer coolant guiding channel (12) and outside coolant guiding channel (16) are provided with water leg.
3. the coal water slurry gasifying device according to any one of claim 1-2, it is characterised in that described burner (2) has at least 3；Each burner (2) is along the circumferential direction uniformly arranged at the top of described vaporizer (17).
4. coal water slurry gasifying device according to claim 3, it is characterized in that, the inwall of described vaporizer (17) is water-cooling wall (3), and described water-cooling wall (3) is put by metallic plate and dish and the water pipe that is fixed on described metallic plate forms；Described water-cooling wall (3) is on the water pipe and metallic plate of fire side, and dispersion is fixed with thermal conductive material layer.
5. coal water slurry gasifying device according to claim 4, it is characterized in that, be positioned at described water-cooling wall (3) to fire side water pipe and metallic plate on thermal conductive material layer and Heat Conduction Material lamellar spacing to fire side water pipe and metallic plate on, be coated with refractory masses.
6. coal water slurry gasifying device according to claim 5, it is characterised in that the water pipe water inlet of described water-cooling wall (3) is in bottom, and outlet is on top.
7. coal water slurry gasifying device according to claim 6, it is characterized in that, being provided with the Quench shower nozzle (4) for spraying cooling in described shock chamber (18), described Quench shower nozzle (4) is positioned at described gas exit (6) top；The down-comer (7) for cooling down it is additionally provided with in described shock chamber (18)；The upper end of described down-comer (7) is connected to the down-comer top (5) being positioned at described Quench shower nozzle (4) lower section, and the lower end of described down-comer (7) extends to below the pulp water pond liquid level in described shock chamber (18)；Described down-comer top (5) and described down-comer (7) angled β, 90 ° < β < 180 °, and the bottom on described down-comer top (5) is connected with described down-comer (7), top is fixed on the inwall of described gasification furnace shell (1).
8. coal water slurry gasifying device according to claim 7, it is characterised in that described Quench shower nozzle (4) is atomizer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521130144.5U CN205382134U (en) | 2015-12-30 | 2015-12-30 | Coal slurry gasification equipment |
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| CN201521130144.5U CN205382134U (en) | 2015-12-30 | 2015-12-30 | Coal slurry gasification equipment |
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| CN205382134U true CN205382134U (en) | 2016-07-13 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106281399A (en) * | 2016-09-28 | 2017-01-04 | 中石化宁波工程有限公司 | A kind of pyrolysis of coal liquefaction device and method |
| CN107338073A (en) * | 2017-01-10 | 2017-11-10 | 北京清创晋华科技有限公司 | A kind of constant level chilling-type gasification furnace |
| CN108130133A (en) * | 2018-01-02 | 2018-06-08 | 神华集团有限责任公司 | A kind of extensive half useless pot gasification installation |
| CN108485710A (en) * | 2018-05-30 | 2018-09-04 | 科林未来能源技术(北京)有限公司 | It is a kind of cooperation-gasified can dispose waste liquid, the gasification furnace and method of slurry and coal dust |
| CN108728168A (en) * | 2017-04-14 | 2018-11-02 | 航天长征化学工程股份有限公司 | Gasification burner |
| CN109082307A (en) * | 2018-10-11 | 2018-12-25 | 无锡华光锅炉股份有限公司 | A kind of Natural Circulation gasification furnace cooling device |
| CN112779059A (en) * | 2021-01-06 | 2021-05-11 | 北京清创晋华科技有限公司 | Combustion chamber applied to entrained flow gasifier |
| CN113025386A (en) * | 2021-02-04 | 2021-06-25 | 杨建平 | Nozzle for mixed feeding of dry and wet materials, gasification furnace comprising nozzle and gasification method |
-
2015
- 2015-12-30 CN CN201521130144.5U patent/CN205382134U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106281399A (en) * | 2016-09-28 | 2017-01-04 | 中石化宁波工程有限公司 | A kind of pyrolysis of coal liquefaction device and method |
| CN106281399B (en) * | 2016-09-28 | 2018-11-30 | 中石化宁波工程有限公司 | A kind of pyrolysis of coal liquefaction device and method |
| CN107338073A (en) * | 2017-01-10 | 2017-11-10 | 北京清创晋华科技有限公司 | A kind of constant level chilling-type gasification furnace |
| CN108728168A (en) * | 2017-04-14 | 2018-11-02 | 航天长征化学工程股份有限公司 | Gasification burner |
| CN108130133A (en) * | 2018-01-02 | 2018-06-08 | 神华集团有限责任公司 | A kind of extensive half useless pot gasification installation |
| CN108130133B (en) * | 2018-01-02 | 2024-01-23 | 神华集团有限责任公司 | Large-scale semi-waste boiler gasification device |
| CN108485710A (en) * | 2018-05-30 | 2018-09-04 | 科林未来能源技术(北京)有限公司 | It is a kind of cooperation-gasified can dispose waste liquid, the gasification furnace and method of slurry and coal dust |
| CN109082307A (en) * | 2018-10-11 | 2018-12-25 | 无锡华光锅炉股份有限公司 | A kind of Natural Circulation gasification furnace cooling device |
| CN112779059A (en) * | 2021-01-06 | 2021-05-11 | 北京清创晋华科技有限公司 | Combustion chamber applied to entrained flow gasifier |
| CN113025386A (en) * | 2021-02-04 | 2021-06-25 | 杨建平 | Nozzle for mixed feeding of dry and wet materials, gasification furnace comprising nozzle and gasification method |
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